Help confused

Caitlin • 31 years old, married 4 years! We tried to conceive for 2.5 years. finally got pregnant and gave birth to a healthy baby boy Aug 10th 2016. Getting ready to try for one more here soon!!!
So I took opk and got a positive result 4 days ago, we bd a lot. Well glo says my fertile window starts today and today I've had more watery cm than normal. Do you think I'm ovulating today instead?